Author Affiliations

Xing Rao,^1,2 George Y. Chen,^1,2,* Neil G. R. Broderick,³ Gilberto Brambilla,⁴ and Yiping Wang^1,2

¹Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

²Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things, Guangdong and Hong Kong Joint Research Centre for Optical Fiber Sensors, Shenzhen University, Shenzhen 518060, China.

³Dodd Walls Centre for Photonic and Quantum Technologies and the Department of Physics, University of Auckland, Private Bag 92019, Auckland, New Zealand.

⁴Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK.

^*Corresponding author: gychen@szu.edu.cn